Table 1

Parameter values for four genetic strains of Manduca used to generate model results shown in Figure 11

Strain

Parameter

B

W

H

D

W0 (g)

0.9

1.25

1.3

1.45

CW (g)

3.5

5.2

6.4

7.0

ICG

1.25

1.0

1.5

1.5

GR (g/day)

1.5

2.2

2.4

2.4

W(t)

3.4

4.7

5.5

6.1

t (days)

2.5

2.5

2.5

2.5

Peak weight (g)

5.9

7.7

10.2

10.8

SD

0.6

0.6

1.1

1.2

The average peak weight and standard deviation (SD) for each strain are shown. W0, initial weight of fifth instar larvae; CW, critical weight; ICG, interval to cessation of growth, that is, the interval between
attainment of the critical weight and the secretion of PTTH; GR, growth rate; W(t), weight at time t (2.5 days in all cases reported here).